Pyridoxine (PN)[4] is a form of vitamin B6 found commonly in food and used as a dietary supplement.

As a supplement it is used to treat and prevent pyridoxine deficiency, sideroblastic anaemia, pyridoxine-dependent epilepsy, certain metabolic disorders, side effects or complications of isoniazid use, and certain types of mushroom poisoning.

[5] Sources in the diet include meat, fish, fruit, vegetables, and grain.

[6] As a treatment (oral or injection), it is used to treat or prevent pyridoxine deficiency, sideroblastic anaemia, pyridoxine-dependent epilepsy, certain metabolic disorders, side effects of isoniazid treatment and certain types of mushroom poisoning.

[9] Pyridoxine in combination with doxylamine is used as a treatment for morning sickness in pregnant women.

[5] Pyridoxine overdose can cause a peripheral sensory neuropathy characterized by poor coordination, numbness, and decreased sensation to touch, temperature, and vibration.